S
M
T
W
T
F
S
30
72°
63°
31
70°
59°
1
70°
57°
2
73°
55°
3
75°
64°
4
72°
54°
5
68°
52°
6
73°
57°
7
81°
61°
8
65°
50°
9
64°
49°
10
67°
51°
11
65°
51°
12
69°
55°
13
68°
53°
14
71°
56°
15
71°
56°
16
66°
53°
17
65°
52°
18
66°
54°
19
66°
53°
20
65°
52°
21
66°
53°
22
67°
54°
23
68°
53°
24
69°
53°
25
68°
51°
26
64°
48°
27
63°
47°
28
63°
45°
29
62°
45°
30
61°
51°
1
63°
50°
2
62°
47°
3
65°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sint Anthonis
Sint Anthonis's September 2026 forecast shows daily high temperatures ranging from 61° to 81°, with overnight lows between 45° and 61°. The average high for September is 67° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Sint Anthonis. See also: October | November | December.
